Psychology

Vol.5 No.6(2014), Paper ID 45333, 15 pages

DOI:10.4236/psych.2014.56064

 

Happiness Decreases during Early Adolescence—A Study on 12- and 15-Year-Old Finnish Students

 

Lotta Uusitalo-Malmivaara

 

University of Helsinki, Helsinki, Finland

 

Copyright © 2014 Lotta Uusitalo-Malmivaara et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

 

How to Cite this Article

Uusitalo-Malmivaara, L. (2014). Happiness Decreases during Early Adolescence—A Study on 12- and 15-Year-Old Finnish Students. Psychology, 5, 541-555. doi: 10.4236/psych.2014.56064.
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